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WILLIAM M. NEWTON, OF BALTIMORE; MAEvLANn AssIG'NOR TO HIM- SELE AND JOHN E. AEMENDT, OE THE SAME PLACE.

Leners, Patent No. 81,101, dated August 1s, 186s.

IMIROVED BRUSH.

TO ALL WHOMIT MAY OONOEEN: s

Beit known I, WILLIAM M. NEWTON, of Baltimore, in the 'county ot' Baltimore, and State of Maryland, have invented certain new and useful lmprovements in Paint-Brushes, styled trenchers4 or pencils; and I do hereby declare that the following is a'full, elearLand exact desc`ript-ion thereof, reference being had to the accompanying drawings, making part of thispspecicatiomand to the letters of reference marked thereon, like lettersindicating like parts wherever they Occur. y

To enable others skilled in the art to construct a'nd use my invention, I will proceed to .describe it.

Figure 1 is a side view of my improved brush.

Figure 2 is a top plan view of the same, and

Figure 3 nis a vertical cross-section, on theline :t ,fr of iig. 1.

My invention relates to certain improvements in the construction of that class of paint-brush denominated trenches and pencils, which are used for painting the seams in hulls of vessels, and forthe white-striping on brick walls, ttc. Brushes of this class have hitherto been madeof a dat stripof wood, having about one-halt' of its length fashioned into `a handle, and being split vertically the remainder of the distance, and having the ends of the bristles introduced into this slit, and held there by means of glue, the stick or body being fastened together at'the split' end, by packing-thread wound around it in a groove near the end. Brushes thus constructed are very expensive, and do not well answer the' purpose for which they are intended, as the bristles often become loose and fall out, and the brush, being of no further use, is thrown away; besides, when painting brick walls and similar rough surfaces, the bristles wear away very'rapidly, and soon become too short to use. As thesebrnshes cannot be repaired in any way when injured or worn, `new brushes must be frequently purchased, thus causing great expense to the painter. V

It is to provide against these difficulties that I construct my improved brush. My brush consists vof a castmetal frame, A, of the form shown in iigs. 1 and 2, being formed into a handle at one end, said handlel having, for the sake of lightness, some portions of the metal ent away, as in fig. 1, leaving a skeleton only. The other portion of the frame is intended to receive the bristles, andis made of lessthanhalf the thickness of the handle, and pierced with three Or more holes to receive screws C; said screws being for the purpose of fastening to the frame A, a dat metal strip, B, o`1 the same length and width as the thin portion of the frame. The screws C pass throughthis strip, and are tapped into frame A, as shown in iig. 3.

The bristles D forming the brush are held between the plate B andthe frame A, as in gs. 2 and 3, theyfin forming the brush, beingl laid hat, with their upper ends upon the frame A, valong the thin portion; the plate B is then placed in position, the screws inserted, and the plate screwed downptightly in place. The brush is now complete. l l e To prevent the bristles of the front end ofthe brush from working ont, I cast a lug, a, on the insidel of the frame, as shown in lig. '2, and' cut away enough of the metal on B to allow it to just 'pass down inside, thus securing the endy bristles as firmly as those at any other' point.

By using a frame of this kind, the'brush may be made thinner or thicker, at pleasure. And when the bristles are worn or -injured, they may be replaced by new ones in a moment, all that is necessary being to loosen the plate B by means of the screws O, draw out vthe old bristles, substitute the new ones, and screw the plate down' again.

'One great advantage et' my brush is, that by it I can utilize the bristles from old worn-out paint-brushes which would otherwisebe thrown away.

The yupper ends of the bristles, the portion that comes within the frame, may be glued together, as in the wooden brushes, although I consider it no object, as they areheld very firm without.

'It' founddesirable in practice, theinside surfaces of A and B, the portion which bears upon the bristles,

may be grooved or serrated longitudinally, the plain surface, however, answering every purpose.

By thus constructing a brush, I provide onelthot is much neatcr and sti'ongcr than the old style, the handle of which :my painter can rell with bristles when the others are worn out, andthe handle last a. lifetime.

It is obvious that a. brush may be made of Wood on this plan, although it is considered no object so to do.

` I am aware that a. whitewash-brush has heretofore been made with a. detachable plate for holding the bristles in place, and therefore Ido not claim broaflly the'idea. of o detachable o1' clamping-plate in brushes; but

What I do claim is-v The improved trencher-brush, consisting of the combined handle :molY frame A, made of a. single piece of metal, and the plate B secure'l'theeto, as herein shown and described.

Witnesses:

O. W. J. BOWLING, JouN H. HOLTHAUS.

WM. M. NEWTON. 

